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Goodwill and Intangible Assets (Summary Of Intangible Assets) (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Intangible Asset, Acquired, Finite-Lived [Line Items]      
Gross Asset $ 823.9 $ 814.2  
Accumulated Amortization 411.6 394.9  
Net $ 412.3 419.3 $ 308.9
Weighted  Average Amortization Period of Finite Lived Assets (in years) 18 years 3 months 18 days    
Intellectual property rights      
Intangible Asset, Acquired, Finite-Lived [Line Items]      
Gross Asset $ 65.7 65.5  
Accumulated Amortization 16.0 15.4  
Net $ 49.7 50.1  
Weighted  Average Amortization Period of Finite Lived Assets (in years) 11 years    
Customer relationships and backlog      
Intangible Asset, Acquired, Finite-Lived [Line Items]      
Gross Asset $ 616.7 610.5  
Accumulated Amortization 305.4 293.9  
Net $ 311.3 316.6  
Weighted  Average Amortization Period of Finite Lived Assets (in years) 18 years 10 months 24 days    
Developed technology      
Intangible Asset, Acquired, Finite-Lived [Line Items]      
Gross Asset $ 68.4 66.4  
Accumulated Amortization 29.4 26.8  
Net $ 39.0 39.6  
Weighted  Average Amortization Period of Finite Lived Assets (in years) 6 years 9 months 18 days    
Other      
Intangible Asset, Acquired, Finite-Lived [Line Items]      
Gross Asset $ 73.1 71.8  
Accumulated Amortization 60.8 58.8  
Net $ 12.3 $ 13.0  
Weighted  Average Amortization Period of Finite Lived Assets (in years) 12 years 1 month 6 days